MICR 130 Chapter 4 Exam Questions with Answers
During the transition reaction and the Krebs cycle, 6 CO2 molecules are formed per glucose molecule. Where did the carbons for each CO2 molecule originate from?
A.NADH
B.NAD+
C.Glucose
D.Coenzyme A - Answer-A.NADH
_______ uses carbon d...
MICR 130 Chapter 4 Exam Questions
with Answers
During the transition reaction and the Krebs cycle, 6 CO2 molecules are formed per
glucose molecule. Where did the carbons for each CO2 molecule originate from?
A.NADH
B.NAD+
C.Glucose
D.Coenzyme A - Answer-A.NADH
_______ uses carbon dioxide for carbon and iron for energy.
A.Chemoautotroph
B.Chemoheterotroph
C.Photoautotroph
D.Photoheterotroph - Answer-A.Chemoautotroph
What is the role of light energy in photosynthesis?
A.To produce a proton motive force to make ATP
B.To make glucose in the Calvin-Benson cycle
C.To manufacture chloroplasts
D.To produce carbon dioxide - Answer-A.To produce a proton motive force to make
ATP
What is the final outcome of the ETS during aerobic respiration?
A.Oxygen is reduced, and becomes converted to water.
B.Oxygen is oxidized, and becomes converted to water.
C.Nitrate becomes denitrified to become nitrogen gas.
, D.NADH is reformed as the electrons are placed onto NAD+. - Answer-A.Oxygen is
reduced, and becomes converted to water.
Which of the following statements about fermentation is TRUE?
A. Microbes can be differentiated according to the substrates they are able to or unable
to ferment.
B.Microbes capable of fermenting are unable to perform aerobic respiration when
oxygen is present.
C.The most common gas produced as a waste product of fermentation is oxygen.
D.Only prokaryotes are capable of fermentation. - Answer-A. Microbes can be
differentiated according to the substrates they are able to or unable to ferment.
Autotrophs vs. Heterotrophs - Answer-Autotrophs - use carbon dioxide (inorganic)
* "self feeders" that produce organic compounds (key example - glucose)
Heterotrophs - use organic carbon source
*organisms who must obtain their energy source by ingesting or absorbing nutrients
from other living things
How are non-cyclic and cyclic photophosphorylation similar?
A.Both involve an ETS to create a chemiosmotic gradient in order to produce ATP.
B.Both use the same electron source when in aerobic conditions.
C.Both use water as the final electron acceptor.
D.Both use Photosystem I and Photosystem II. - Answer-A.Both involve an ETS to
create a chemiosmotic gradient in order to produce ATP.
How many times can an enzyme carry out a chemical reaction?
A.Once
B.Twice
C.Three times
D.Many times - Answer-D.Many times
Which of the following statements about lipid catabolism is NOT true?
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